<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Title</title>
  <script src="js/vue-2.6.12.js"></script>
</head>
<body>
<div id="app" v-html="msg" >

</div>

<script>

  let vm = new Vue({
    el:"#app",
    data:{

      msg:"  <h1 style='color: aquamarine'>hello vue!</h1>"

    },


  });

</script>

</body>
</html>